331012201 has 8 divisors (see below), whose sum is σ = 356637960. Its totient is φ = 305409792.

The previous prime is 331012193. The next prime is 331012223. The reversal of 331012201 is 102210133.

It can be written as a sum of positive squares in 4 ways, for example, as 109746576 + 221265625 = 10476^2 + 14875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 331012201 - 2³ = 331012193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331012601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33441 + ... + 42193.

It is an arithmetic number, because the mean of its divisors is an integer number (44579745).

Almost surely, 2^331012201 is an apocalyptic number.

It is an amenable number.

331012201 is a deficient number, since it is larger than the sum of its proper divisors (25625759).

331012201 is a wasteful number, since it uses less digits than its factorization.

331012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11675.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 331012201 is about 18193.7407093758. The cubic root of 331012201 is about 691.7481409677.

Adding to 331012201 its reverse (102210133), we get a palindrome (433222334).

The spelling of 331012201 in words is "three hundred thirty-one million, twelve thousand, two hundred one".